Word Study
doppler effect
WORDNET DICTIONARY
Noun doppler effect has 1 sense
- doppler effect(n = noun.phenomenon) doppler shift - change in the apparent frequency of a wave as observer and source move toward or away from each other; Array is a kind of propagation
OXFORD DICTIONARY
doppler effect, n. (also Doppler shift) Physics an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move towards (or away) from each other.
Etymology
C. J. Doppler, Austrian physicist d. 1853
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